Hitachi SJ100 Instruction Manual page 93

Second Acceleration and Deceleration Functions
The SJ100 inverter features two-stage acceleration and deceleration ramps. This gives
flexibility in the profile shape. You can specify the frequency transition point, the point
at which the standard acceleration (F_02) or deceleration (F_03) changes to the second
acceleration (A_92) or deceleration (A_93). These profile options are also available for
the second motor settings. Select a transition frequency method via A_94 as depicted
below. Be careful not to confuse the second acceleration/deceleration settings with
settings for the second motor!
A_94 = 00
Output
frequency
Accel 1
0
2CH
1
input
0
Func. Name /
Code SRW Display
A_92 Acceleration (2) time
setting
ACC 2 0015.0s
A292 Acceleration (2) time
setting, (2nd motor)
2ACC2 0015.0s
A_93 Deceleration (2) time
setting
DEC 2 0015.0s
A293 Deceleration (2) time
setting, (2nd motor)
2DEC2 0015.0s
A_94 Select method to switch
to Acc2/Dec2 profile
ACC CHG
A294 Select method to switch
to Acc2/Dec2 profile,
2nd motor
2ACCCHG
Transition via 2CH input
Accel 2
"A" Function
Description
Duration of 2nd segment of
acceleration, range is:
0.1 to 3000 sec.
Duration of 2nd segment of
acceleration, 2nd motor,
range is: 0.1 to 3000 sec.
Duration of 2nd segment of
deceleration, range is:
0.1 to 3000 sec.
Duration of 2nd segment of
deceleration, 2nd motor,
range is: 0.1 to 3000 sec.
Two options for switching
from 1st to 2nd accel/decel:
00... 2CH input from terminal
TM
01... transition frequency
Two options for switching
from 1st to 2nd accel/decel:
00... 2CH input from terminal
01... transition frequency
TM
(2nd motor)
SJ100 Inverter
A_94 = 01 Transition via freq. level
Output
frequency
Accel 2
A 95
Accel 1
0
t
t
Run
Mode
–FE
Edit
(CE)
✔
15.0
✔
15.0
✔
15.0
✔
15.0
✘
00
✘
00
3–21
Frequency
transition point
t
Defaults
–FU –FR
Units
(UL) (Jpn)
15.0 15.0 sec.
15.0 15.0 sec.
15.0 15.0 sec.
15.0 15.0 sec.
00 00 —
00 00 —